Pneumatic riveter.



ATENTED JUNE 9, 1903.

WVH. VAN SICKEL. PNEUMATG RIVETEEL APPLIGATION FILED APR. 7.1906.

UNIT STATES PATEN T OFTTTOE.

WILBER H. VAN SICKEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THOS. H.

DALLETT CO., A CORPORATION OF NEW JERSEY. i

PNEUMATI'C RIVETER.

Specication of Letters Patent.

Patented June 9, 1908.

Application filed April 7, 1906. Serial No. 310,422.

To all whom 'it may concern:

Be it known that I, VVILBER H. VAN SICKEL, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Pneumatic Riveters, of which the -following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part ot this specification.

The obj ect ot my invention is to produce a pneumatic riveting machine, whereby the rivet may be grasped between the riveting tool and the anvil and the riveting tool operated by means ol air controlled from a single valve, so that by turning this valve, air is admitted to operate the mechanism to cause the rivet to be gripped between the die and` the riveting tool and a further movement admit air to the riveting tool to produce the riveting.

Mv invention further consists in certain details ol'Y construe-tion, which will hereina'l'ter be 'lully set out.

I will irst describe the embodiment ol' in v invention', illustrated in the accompanying drawings and then point out the invention in the claims.

In the drawings: Figure l is a 'Front view oi my improved riveting machine. Fig. 2 is a sectional view ol' the controlling valve in one position. l"i;. ."5 is a sectional view ot the valve in anot her position.

The riveting tool comprises two jaws having the extensions which are pivotally attached at (j and between the members ol the supporting 'volte il. This support d, by means ot' the rods f. is secured to the bar y, which bar f/ hasl an eve l1, by which it maybe suspended trom a hook on an;v desired support. The lower end (I olt one jaw is provided with the oriliced seat fl'orthe anvil e, while Lhe lower portion (l of the other jaw is provided with a seat c `tor the pneumatic riveter nl. The upper end j ol the ilirst mentioned jaw pivoted to the cylinder i, in nlrich is the piston n.. which is pivotally attached to the upper portion of the other jaw. rl`he lstein of this piston and the head if: oriliced or provided with a passage o, which passage o is in connection with a pipe (j.

fr is. a pipe leading to the source oli. compressed air supply. not shown, and s is a pipe leading to the pneumatic riveter fm.

t is a valve at the juncture of the pipes q, r and s. This valve has in it the passages 4, il. and o and the cut-away portion w. The valve casing has a port r in connection with a pipe r; a' port y in connection with a pipe s and a port z in connection with a pipe g. It also has an exhaust port 1. j

2 is an operatinghandle for the valve.

p is a spring between the upper portions? ot the jaws, tending to draw the upper ends together and. thus spread the lower ends of the jaws.

As may be seen, when air is admitted by the valve t tothe pipe q, the air passes to the back ot' the head of the piston, reacting between the cylinder and the piston, causing the upper portions of the jaws to spread and the lower portions in which are carried the anvil and the riveter, to be brought together against the rivet. This movement is against tlie action of the spring p, and when the air is exhausted troni the cylinder, the spring moves the up )er portions of the jaws together, spreading the lower portions.

flalting now the cycle of operation of the valve t and starting with the valve in the position it is shown in Fig. 3, in which osition air passes trom the port a; through t 1e passage u., port z, to the cylinder and the lower portion oi the jaws will be brought together, grasping the rivet between the die and the pneumatic riveter. A further movement of the valve brings it toI the position shown Iin Fig. 2, in which there is connection between the port ar, passage 4 to the port y and thus through the tubesto the pneumatic riveter, and the riveter is operated. The air is still being admitted to the cylinder i through the related to each other that at the time the' passage n. has become inoperative to connecte and e, passages o and 4 will connect the ports r and 2. In the reverse cycle of the valve, or return movement, as may be seen, air is first cut ol l from the pneumatic riveter and in the further movement air is cutoff from the cylinder, and the cylinder is then connected with. the exhaust portl, through cut away portion w. In this last position the spring will spread the lower portion of the jaws. It may thus be seen, by the movement-ot this valve, not only is air admitted to bring the jaws against the rivet, but also to start the pneumatic riveter, and this is done in a fixed sequence, so that the o erated only after t e 'aws have been. c am ed upon the rivet an the pressure by whic this is secured is maintained, during i the riveting, and only released after the operation of the riveter has been sto ped.

The parts are constructed o such weight that the pivot point 6 isy the center of gravity of the machine which may thus be su ported either vertically orv horizontally. IiiV supported horizontally; the machine is connected toits. support directly from the yoke d, the

rods and-bar g, being omitted.

, aving now fully described my invention, what I claim and desire to protect by Letters lPatent' is:

l. In a riveting machine, in combination,

' jaws pivoted together intermediate of their Supply',

length, la pneumatic riveter carried by thel lower 'portion of one jaw, an Ianvil carried by the lower portion of the other jaw, a pressure ldevice foroperating said jaws, there beingy passages, one from the source of pressure supply, another to the jaw-operating device,

and another'to the riveter,` a valve casing in which said passages terminate, a valve insaid--casing controlling the connection'between the pressure supply and the riveter and jaw-operating device, means whereby the valve in its movement one direction first connects the 'aw-operating. device with the pressure supply passage arid then connects the riveter passage with the pressure and means to maintain connection between the pressure', supply=and the said jaweoperatingjd'evice during connection between'the pressure supply and the riveter.

2. In a machine ofthe character described,

' the combination with the pivoted jaws, the

riveter and the jawfoperating device, there being passages, one to the riveter, another to' the j aw-operating device and another from the pressure supply, of a'valve casing in which said passages terminate, a valve in said casmg,

sure supply with the jaw-operating device passage and then to connect the said jaw-operatind device passage and riveter passage with the pressure sup ly. l

3. In a machine of t e character described, the combination with the pivoted jaws, the riveter and the jaw-.operating device, there being passages one to the riveter, another 'to the jaw-operating device and another from the ressure supply, of a valve casing in whic said passages terminate, said valve casing having an exhaust, a valve in said cas ing havin passages' adapted in the movement of t e valve in one direction to first connect the pressure supply with the jawo erating device passage and then to connect t e jaw-operating device passage and riveter passage with the pressure supply and in the movement in the other direction to connect neumatic riveter is having passages adapted in the movement of the valve to first connect the pres'-V saonoe the jaw-operating device passage'with the exhaust.

4,. In a machine of the.: character described, I

in combination with `the jaws pivoted together, intermediate of their length, and

carrying at their lower ends, respectively, the

riveter and the anvil, of a cylinder between said jaws above said pivot and -connected to one ,of said jaws, a piston pivotedA to the other jaw, there being passages onefrom saidV cylinder, another passage from said riveter,

vand another from pressure supply, a valve casingjin which said passages terminate, a

valve in said casin a'dapted, in its movement, to successive y connect said ressure supply with the cylinder passage an simultaneouslywith the riveter passage and the cylinder passage.

5. In a machine of the character described, A

in combination with the jaws, pivoted together intermediate of their length, and carrying at :their lower ends, respectively, the riveter and the anvil, of a cylinder between said jaws, above said pivot, and connected. to one of said jaws, a piston'pivoted to the other jaw, there bein passages, one from said cylinder,'another om said riveter, and another from source of pressure supply, a

vvalve casing in whichl saidl passages termi-A nate, said valve casing havin an exhaust, a valve in said casing. adapte in the move, ment in one direction, to successivelyconnect said pressure supply passage with vthe cylinder assage and with the riveter passage, an in the other direction to successively cut oit connection between the pressure supply passage and the riveter' passageandl the cylinder passage and connect the cylinder passage'with the exhaust.

6. In a riveting machine, in combination, two jaws, a supporting yoke, extensions from said jaws pivoted together and to the su porting yoke central of its length, an ani v' and riveter connected res ectively to the lower ends of said jaws an jaw-operating mechanism connected to the upper portion Vof said jaws.

7. In a riveting machine, in combination, two jaws, a supporting yoke, extensions from the said' jaws pivoted together andato land between the members of the supporting yoke central of its length, an anvland riveter connected respectively to the lower ends of said jaws and jaw-operating mechanism connected to the upper 'portion of said jaws.

8. In a riveting machine, in combination,

ether and to ',9. In a riveting nnatohinein cornbintiom`v ing mechanism connected to the upper por- 10 4 twojaws, a supporting yoke, extensions from tion of seid jaws.

the said .jaws pivoted together and to and In testimony of which invention, I have y between the members of the supporting hereunto set may hand, at' Philadelphia,on

yoke, central of -its length, a rod secured to this 5th day of A ril, 1906.

each end of the sup orting,r yoke, and a ber to WIL ER H. VAN SICKEL. which the other enof said rods are secured, Witnesses: A an anvil and riveterfoonneoted respectively M. M. HAMILTON, Y

' `to the lower ends of sacljaws and aW-operet-v E. EVWALL. 

